List of Solar System objects most distant from the Sun in 2018

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This is a listing of minor planets orbiting the Sun by their approximate distance from the Sun in March 2018 (as opposed to those with the greatest calculated aphelion in their orbit). In March 2018 several new Trans-Neptunian objects (TNOs) with a current heliocentric distance greater than 50 AU were announced by Scott S. Sheppard, Chad Trujillo, and David J. Tholen.[1]

Trans-Neptunian objects are typically announced publicly months or years after their discovery, so as to make sure the orbit is correct before announcing it. Due to their greater distance from the Sun and slow movement across the sky, trans-Neptunian objects with observation arcs less than several years often have poorly constrained orbits. Particularly distant asteroids discovered in 2018 may only be announced in 2020 or later.

List[edit]

Name Distance (AU) Radial velocity (AU/yr)[note 1] Discovered Announced
2018 VG18 ~120 2018-11-10
V774104 ~103 2015-10-13
Eris 96.1 -0.071 2003-10-21 2005-07-29
2014 UZ224 90.9 -0.453 2014-10-21 2016-08-28
2015 TH367 89.2 0.415 2015-10-13 2018-03-13
2007 OR10 88.0 0.233 2007-07-17 2009-01-07
Sedna 85.1 -0.285 2003-11-14 2004-03-15
2013 FS28 84.8 -0.621 2013-03-16 2016-08-29
2014 FC69 84.7 0.250 2014-03-25 2015-02-11
2006 QH181 83.9 0.220 2006-08-21 2006-11-05
2012 VP113 83.7 0.157 2012-11-05 2014-03-26
2015 UH87 82.7 -0.196 2015-10-16 2018-03-12
2013 FY27 80.1 -0.096 2013-03-17 2014-03-31
2015 TJ367 78.7 0.424 2015-10-13 2018-03-13
2010 GB174 71.9 0.542 2010-04-12 2013-04-30
2014 FJ72 71.2 0.461 2014-03-24 2016-08-31
2012 FH84 68.8 0.074 2012-03-25 2016-06-07
2015 GR50 68.4 0.074 2015-04-13 2016-08-31
2015 GP50 68.0 -0.097 2015-04-14 2016-06-07
2013 FQ28 67.8 0.193 2013-03-17 2016-06-07
2014 UD228 66.1 0.183 2014-10-22 2017-12-07
2016 CD289 65.8 0.184 2016-02-05 2018-03-13

See also[edit]

Notes[edit]

  1. ^ This indicates if the object is moving inwards or outwards in its orbit, and the rate at which it does so.

References[edit]